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nasty-shy [4]
4 years ago
10

X - 3y = 6

Mathematics
2 answers:
Grace [21]4 years ago
8 0

Answer:

  • multilpy 1 equation by 8..
  • <em>equ</em><em>.</em><em> </em><em>becomes</em><em>=</em><em>8</em><em>x</em><em>-</em><em>2</em><em>4</em><em>y</em><em>=</em><em>4</em><em>8</em>

<em> </em><em>now</em><em> </em><em>subtract</em><em> </em><em>1</em><em> </em><em>equation</em><em> </em><em>f</em><em>rom</em><em> </em><em>2</em><em> </em><em>equat</em><em>ion</em><em>,</em><em>,</em>

<em>and</em><em> </em><em>answer</em><em> </em><em>will</em><em> </em><em>co</em><em>me</em><em>=</em><u>9</u><u>x</u><u> </u><u>-2y</u><u> </u><u>=</u><u>0</u>

iragen [17]4 years ago
3 0

Answer:

9x - 2y = 0

Step-by-step explanation:

elimination method

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Maisie has saved up $50 to buy concert tickets, but the tickets cost $125. She is able to earn $15 per day by walking her neighb
snow_tiger [21]

Subtract 50 from 125

75

Divide by 15 (number of dollars per day)

5

If Maisie walks her neighbors dogs for 5 days, she will save up to a total of 125

Hope this helps :)

6 0
4 years ago
Read 2 more answers
a father is 25 years older than his son.Five years ago he was 6 time old as his son was find their presents
IceJOKER [234]

Answer:

the present age of the father be x and the present age of the son be y.

It is given that man is 24 years older than his son that is:

x=y+24

x−y=24..........(1)

Also, 12 years ago, he was five times as old as his son that is:

(x−12)=5(y−12)

x−12=5y−60

x−5y=−60+12

x−5y=−48..........(2)

Now subtract equation 1 from equation 2 to eliminate x, because the coefficients of x are same. So, we get

(x−x)+(−5y+y)=−24−48

i.e. −4y=−72

i.e. y=18

Substituting this value of y in (1), we get

x−18=24

i.e. x=24+18=42

Hence, the present age of the father is 42 years and the present age of the son is 18 years.

Step-by-step explanation:

5 0
3 years ago
Suppose you have to use right-triangle trigonometry to find the apothem of a regular polygon. Which is greater, the apothem or t
asambeis [7]
The apothem represents one side of the right triangle to be solved. Specifically, it represents the height of the triangle.
 The radius of the polygon represents the hypotenuse of the right triangle that is going to be solved.
 Therefore, we can infer that the radius of the polygon is greater than the apothem because the hypotenuse is greater than all sides of a triangle.
 Answer:
 the radius of the polygon is greater
8 0
3 years ago
Show all work to factor x4 − 17x2 + 16 completely.
Triss [41]

Answer:

Step-by-step explanation:

put x^{2}=y\\squaring\\x^{4}=y^{2}\\y^2-17y+16=y^2-y-16y+16=y(y-1)-16(y-1)=(y-1)(y-16)\\replacing the value of y\\x^4-17x^2+16=(x^2-1)(x^2-16)=(x+1)(x-1)(x+4)(x-4)

8 0
3 years ago
A triangle has points R(-2,0) ,S(2,8) and T (8,2) as shown in the group. M is the midpoint of RT . What is the length of SM
kotykmax [81]

Answer:

Step-by-step explanation:

893

7 0
4 years ago
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